Valve for bottle-filling machines.



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.VALVE FOR BOTTLE FILLING MACHINES.

APPLICATIDII FILED A`PILII7 |913- f Ptented Apr. 20, 191.5.w

INVNTOR i FRANK TYsoN BY H15 ATT RNE III, @I L/ 4.- AV/kw .5.

mi? g 8 ,\\\\\\\\\f v ,x WV A :E mf, @i m I w FRANK TYSON, F CANTQN,OHIO.

VALVE FOR BOTTLE-FILLING MACHINES.

specification of Letters Patent. Patented Apr. 20, 19175.

. Application led April 17, 1913. Serial No. 761,705.

T0 all whom it may concern 'Be it known that I, FRANK TYsoN, a citizenof the United States, residing in .Canv ton, Ohio, have invented certainImprovements in Valvesl for Bottle-Filling Machines, of which thefollowing is a specification. My invention relates to machines forfilling bottles with liquid, a 'common type of'v suchl machine beingthat employed for lling milk bottles.

One/object of my invention is to so construct the -valve mechanism whichcontrols the filling of each bottle as to prevent the drip, which, invalves as non' constructed, usually follows the withdrawal of the bottlefrom beneath the valve.

A further object of my invention is to facilitate the application of theValved filling 2o tube to the tank or its removal from 'the latter.

In the accompanying drawing-Figure 1 is la longitudinal sectional viewof a valve for bottle filling Amachines constructed in accordance withmy invention, and showing the valve in the open position which itassumes while the liquid is flowing into the bottle; Fig.. 2 is asimilar view showing the valve in position to cut ofi" the further flowof liquid into the bottle; Fig. 3 is a like view showing the valveclosed against its .f'seat; Fig. 4 is a horizontalY section on the linea-e, Fig. 1, and Fig. 5 is a horizontal section on the line b -b, Fig.1.

In the drawing, 1 represents part of the bottom of a tank or vessel-forcontaining the liquid with which the bottles are to be filled, thisportion of the tank having formed in it as many internally threadedopenings as there are valves to be employed in connection with the tank.Each of these openings has screwed into it a threaded flange '2 at thetop of a depending nipple 3 which projects below the bottom of the tank,the upper face of the flange 2 having projecting lugs 4 for the actionofv a wrench whereby said flange may bel screwed into or unscrewed fromthe threaded opening in the bottom of the tank.

Secured to and extending downwardly from the nipple 3 i's a tube 5 whichhas,

near its lower v end, lateralopeningsv 6 through which the fluid canescape, the lower end of the tube being provided with a screw plug 7with inclined flange 8, constituting a seat for the valve hereinafterdescribed. Passing through the center of the plug 7 1s an air vent tube9which extends up into the tank. The lupper end of .this tube should beabove the level of liquid in the tank.

Surrounding the tn be 5 and guided vertically thereupon is a valve10`which fits so snugly to the tube 5 as to prevent any flow of airbetween them except through internal grooves or passages 5 formed insaid valve, as shown in Fig. 5. These passages extend from top' tobottom of that portion of the Valve which is in contact. with the tube5. The valve 10 has aprojectingflange 11 of less diameter than theflange 2 of the nipple and to the under side of said flange 11 is fitteda gasket l12 of rubber or other flexible material. The valve 10 has anupwardly projecting sleeve 13 which is guided upon the nipple 3, fitssnugly thereto, and is, by preference, prevented from turning thereon,as for instance, by means of lugs 14 carried by the sleeve and engagingwith vertical slots 15 formed lin the outer face of the nipple 3.

spring 16 which bears atthe bottom against the upper face of the flange11 of the valve and at the top against the under face of the flange 2 ofthe nipple, this spring tending constantly to depress the valve andcause its countersunk lower end to seat upon the vtapering flange 8 ofthe plugA 7 at the lower end ofthe tube 5.

The operation of the valve4 is as follows, the normal position of theparts being that shown in Fig. 3, that is to say, with the valve 10loccupying its lowermost position, closing lthe openings 6 in the tube 5and bearing upon its seat on the vplug 7. The

bottle to be filled is inserted beneath the valve and then lifted, sothat the mouth of the bottle comes into contact with the gasket 12' ofthe valve and isthereby sealed, continued upward movement of the bottlethen causing the raising of the valve to the position` shown in Fig. 1,thus uncovering the openings 6 in thetube 5 and permitting the free flowof liquid .from said tube intothe bottle, the displaced air nding aready vent through the tube 9, which isopen at the top. During `the liftof the valve the air contained in Vthe space 17 betweenthe lower end oflthe nipple 3 and the lower Apart of the valve, which fits snugly tothetube 5, is

' forced out of said space and into the upper Surrounding the sleeve 13is a coiled part of the bottlethrough the passages Just before thefilling of the bottle has been completed the bottle is lowered and thevalve descends with it so as to gradually close the openings 6 in thetube 5, and cut ofi' the How of liquid into the bottle by the time thevalve reaches the position shown in Fig. 2. Downward movement of thevalve with the bottle continues from the point shown in Fig. 2 toqthatshown in Fig. 3, when the valve finally closes against lts seat on theplug 7. During the movement from the osition shown in Fig. 1 to thatshown in ig.

f 3 the gasket 12 still seals the mouth of rthe bottle and the nipple 3acts as the piston of a pum ofV which the valve sleeve 13 constitutes te cylinder, air being drawn from thel bottle through the passages 5ainto the constantly increasing space 17 between the nipple and. valvewlth the result that any Vfoam bubbles which may have accumulated uponthe top of the body of liquid in the .bottle will be eliminated. As thebottle continues to descend after the flow of milk into the same hasbeen out off, as shown in Fig. 2, the pumping action continues and airis i lstill withdrawn from the bottle throughy the passages 5, hence apartial vacuum would be formed in the upper portion of the bottle if itwere not for the inflow of air through the vent tube 9, and this actionwould take placeA even if there were no preliminary pumping action asabove described. The in,

The tube 5 being secured to the nipple 3 and the valve 10 being hungupon said nipple, the entire structure can be readily handled as a unitand can be inserted through the tankinto its proper position by screwinthe flange 2 of the nipple into the threaded opening in the bottom, of4the tank intended'for its reception, or can be removed through the tankby reversing such procedure. l l .Ivclaim:

1.?, Thecombination, in a bottle filling niachine, of a illing' tube anda bottle-controlled valve for opening and closing the same, withmeanswhereby the closing movement of the valve causesthe withdrawal of airfrom the upper portion ofthe bottle.

'2. The combination, in a bottle filling machine, of a filling tube, avent tube, and a bottle-controlled lvalve for opening and closing, saidfilling tube, with means whereby, While the valve is closing thedischargeo en.- ing in .the filling tube, the movement o the valvecauses the withdrawal of air from the bottle above the milk andconsequently an indraft of air through the vent tube.

- 3. The combination, in a bottle filling machine, of a filling tube, abottle controlled valve for opening and closing the same, said valvehaving a projecting sleeve, and a guidf ing nippletted to said sleevesoas to form a pump loi" which the sleeve is the cylinder and the nippleV,the piston, passages being formed between the filling tube and valvewhich provide communication between said pulmp cylinder and the lowerend of the va ve.

In testimony whereof, have signed myname to this specification, in thepresence of two subscribing witnesses.

FRANK TYSON.

Witnesses: KATE A. BEA'DLE,

HAMlLToN D. TURNER.

